Step-by-step explanation:
f(-1)=3×(-1)²-4×(-1)
=3×1-4×(-1)
=3+4
=7
hope it helps.
Answer:
<h2>

</h2>
Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>
- trigonometry
- equation
- PEMDAS
<h3>tips and formulas:</h3>
<h3>given:</h3>
<h3>let's solve:</h3>



Answer:
(-239.4, 657.8) km/h
Step-by-step explanation:
Measured CCW from the +x axis, the angle at which the airplane is traveling is 110°. Then the (x, y) components of the velocity vector are ...
(700 km/h)(cos(110°), sin(110°)) ≈ (-239.4, 657.8) km/h
Answer:
f(x) = (x-4)(x+2)
Step-by-step explanation:
f(x) = x^2 – 2x – 8
What 2 numbers multiply to -8 and add to -2
-4*2 = -8
-4+2 = -2
f(x) = (x-4)(x+2)
Answer:
no
Step-by-step explanation:
13² should be equal to 4² + 12² for that
checking, we get that 169 is not equal to 16+144= 160
so it's not right angle
to be tangent, it should be right angle